Re: Updated Linux 2.4 Status/TODO List (from the ALS show)

[Linus Torvalds]

On Fri, 13 Oct 2000, Jakub Jelinek wrote:

> On Fri, Oct 13, 2000 at 02:17:23PM -0700, Richard Henderson wrote:
> > On Fri, Oct 13, 2000 at 12:45:47PM +0100, Alan Cox wrote:
> > > Can we always be sure the rss will fit in an atomic_t - is it > 32bits on the
> > > ultrsparc/alpha ?
> > 
> > It is not.
> 
> It is not even 32bit on sparc32 (24bit only).

But remember that "rss" counts in pages, so it's plenty for sparc32: only
32 bits of virtual address  that can count towards the rss.

And even on alpha, a 32-bit atomic_t means we cover 45 bits of virtual
address space, which, btw, is more than you can cram into the current
three-level page tables, I think.

                Linus

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